EP
Ernest Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mercer-County, Pennsylvania
Our Model Tree links this Ernest Peterson across the 1920, 1930 and 1940 US Censuses in Mercer-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents A & Ralph — first a head (b.~1911), then head of a 5-person household.
Age 29
b. ~1911
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, Pennsylvania |
| Surname | Peterson |
| Given Name | Ernest C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Venango |
| Additional Details | |
| Occupation | Laborer |
| Industry | W. P. A. Project |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 560 |
| Highest Grade | 8 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Millcreek Twp |
| Est. Birth Year | ~1911 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ernest | Age | Birth yr |
|---|---|---|---|---|
| Shirley Peterson | Daughter | — | 4 | ~1936 |
| Maxine Peterson | Daughter | — | 6 | ~1934 |
| Ernest Peterson | Head | — | 29 | ~1911 |
| Ernest Peterson | Son | — | 2 | ~1938 |
| Sara Peterson | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Mercer, Pennsylvania
Son, age 9
Mercer, Pennsylvania · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Ernest L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Mercer, Pennsylvania
Son, age 19
Mercer, Pennsylvania · implied b. ~1911 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Ernest E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Log Cutter |
| Industry | Woods |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Mercer-County, Pennsylvania
Head, age 29
Mercer-County, Pennsylvania · implied b. ~1911 — 5 household members
| Surname | Peterson |
| Given Name | Ernest C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Venango |
| Occupation | Laborer |
| Industry | W. P. A. Project |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 560 |
| Highest Grade | 8 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Ernest Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father A Peterson (~0.92 confidence) and father Ralph Peterson (~0.92 confidence) and mother Ada Peterson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
A Peterson
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Ralph Peterson
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Ada Peterson
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ernest Peterson
Head · 1940 · age 29 · b. ~1911 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mercer-County, Pennsylvania
Open full size
1940 US Federal Census — Mercer-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03571-00591)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John M Kudiak | 16 | Son | Laborer | Pennsylvania |
| 42 | Dorothy N Kudiak | 14 | Daughter | — | Pennsylvania |
| 43 | Mary M Kudiak | 12 | Daughter | — | Pennsylvania |
| 44 | Julie G Kudiak | 9 | Daughter | — | Pennsylvania |
| 45 | Runa M Kudiak | 5 | Daughter | — | Pennsylvania |
| 46 | Alice J Kudiak | 4 | Daughter | — | Pennsylvania |
| 47 | Silas G Mccullough | 45 | Head | Farmer | Pennsylvania |
| 48 | Mary M Mccullough | 39 | Wife | — | Pennsylvania |
| 49 | Alice A Mccullough | 80 | Mother | — | Pennsylvania |
| 50 | Ernest M Chatley | 63 | Head | — | Pennsylvania |
| 51 | Belle S Chatley | 62 | Wife | — | Pennsylvania |
| 52 | Charles Mears | 56 | Hired hand | Laborer | Pennsylvania |
| 53 | Mcclain T Dean | 48 | Head | — | Pennsylvania |
| 54 | Twila M Dean | 44 | Wife | — | Pennsylvania |
| 55 | Leroy C Irwin | 39 | Hired hand | Laborer | Pennsylvania |
| 56 | Ernest C Peterson THIS PERSON | 29 | Head | Laborer | Pennsylvania |
| 57 | Sara A Peterson | 26 | Wife | — | Pennsylvania |
| 58 | Maxine L Peterson | 6 | Daughter | — | Pennsylvania |
| 59 | Shirley H Peterson | 4 | Daughter | — | Pennsylvania |
| 60 | Ernest S Peterson | 2 | Son | — | Pennsylvania |
| 61 | W. Leonard Crouser | 65 | Head | — | Pennsylvania |
| 62 | Sarafa W Crouser | 61 | Wife | — | Pennsylvania |
| 63 | W. Don Crouser | 33 | Son | Teacher | Pennsylvania |
| 64 | R. Frederick Crouser | 30 | Son | Laborer | Pennsylvania |
| 65 | Charles L Crouser | 19 | Son | Laborer | Pennsylvania |
| 66 | Samuel E Fitz | 66 | Head | Farmer | Pennsylvania |
| 67 | Nora M Fitz | 67 | Wife | — | Pennsylvania |
| 68 | James D Alexy | 71 | Head | Carpenter | Pennsylvania |
| 69 | Annette B Alexy | 59 | Wife | — | Pennsylvania |
| 70 | William S Ritchie | 39 | Son-in-law | Carpenter | Ohio |
| 71 | Marian Ritchie | 30 | Daughter | — | Pennsylvania |
| 72 | William B Ritchie | 8 | Grandson | — | Ohio |
| 73 | Judith A Ritchie | 1 | Granddaughter | — | Ohio |
| 74 | Joseph W Hardy | 41 | Head | Laborer | Pennsylvania |
| 75 | Eleanor L Hardy | 32 | Wife | — | Pennsylvania |
| 76 | William H Grantham | 62 | Head | Farmer | England |
| 77 | Katherine Grantham | 55 | Wife | — | Holland |
| 78 | Richard W Grantham | 21 | Son | Laborer | Pennsylvania |
| 79 | Robert Grantham | 18 | Son | Laborer | Pennsylvania |
| 80 | Alice A Grantham | 16 | Daughter | — | Pennsylvania |
Pedigree Summary
Ernest
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)